Kate is the author of THE THIEF KNOT, GREENGLASS HOUSE, GHOSTS OF GREENGLASS HOUSE, BLUECROWNE, THE LEFT-HANDED FATE, THE BONESHAKER, THE BROKEN LANDS, THE KAIROS MECHANISM, and the forthcoming THE RACONTEUR'S COMMONPLACE BOOK (February 2021). Originally from Annapolis, MD, Kate now lives in Brooklyn, NY with her husband Nathan and son Griffin and their dogs, Ed and Sprocket. She has written for stage and screen and is a frequent travel columnist for the Nagspeake Board of Tourism and Culture (www.nagspeake.com).

A serious book addict, Bruce wanted to be a children's book author since he was in 4th grade (right after he got over wanting to be a pirate, Tarzan, and Daniel Boone). Today he's the author-illustrator of over 70 seriously funny books for kids, so some dreams do come true. The Malted Falcon, one of his Chet Gecko Mysteries series, was an Edgar Award finalist, and Murder, My Tweet won a Little D Award for Juvenile Humor Writing. Bruce has written everything from picture books and easy readers, to graphic novels and novels. Bruce's recent Monstertown Mysteries series blends horror and humor, based on his childhood love of monster movies. His other series include Class Pets, about the secret lives of classroom pets, and the forthcoming Outerspace Mystery Pizza Club books, due in 2024. A Fulbright Scholar (in Storytelling), Bruce is also a popular speaker, both in the U.S. and internationally. He lives in Santa Barbara with his wife and knuckleheaded dog Riley. When he's not writing or reading, you may find him hiking, kickboxing, or singing with a latin-jazz band called Mezcal Martini.

Lerangis' work includes The Viper's Nest and The Sword Thief, two titles in the children's-book series The 39 Clues, the historical novel Smiler's Bones, the YA dark comedy-adventure novel wtf, the Drama Club series, the Spy X series, the Watchers series, the Abracadabra series, and the Antarctica two-book adventure, as well ghostwriting for series such as the Three Investigators, the Hardy Boys Casefiles, Sweet Valley Twins, and more than forty books in the series The Baby-sitters Club and its various spin-offs.[1] He has also written novels based on film screenplays, including The Sixth Sense, Sleepy Hollow, and Beauty and the Beast, and five video game novelizations in the Worlds of Power series created by Seth Godin.[2] As a ghostwriter he has been published under the name A. L. Singer.[3] Lerangis is the son of a retired New York Telephone Company employee and a retired public-elementary-school secretary, who raised him in Freeport, New York on Long Island. He graduated from Harvard University with a degree in biochemistry, while acting in musicals[4] and singing with and musically directing the a cappella group the Harvard Krokodiloes,[5][6] before moving to New York. He worked there as an actor[7] and freelance copy editor for eight years before becoming an author.[8] In 2003, Lerangis was chosen by First Lady Laura Bush to accompany her to the first Russian Book Festival, hosted by Russian First Lady Lyudmila Putina in Moscow.[9][10]Authors R. L. Stine (Goosebumps) and Marc Brown (the Arthur the Aardvark series) also made the trip with Bush.[9] Also in 2003, Lerangis was commissioned by the United Kingdom branch of Scholastic to write X-Isle, one of four books that would relaunch the Point Horror series there.[11] A sequel, Return to X-Isle, was published in 2004. In 2007, Scholastic announced the launch of a new historical mystery series called The 39 Clues, intended to become a franchise.[12] Lerangis wrote the third book in the series, The Sword Thief, published in March 2009.[13][14][15] On March 3, 2009, Scholastic announced that Lerangis would write the seventh book in the series, The Viper's Nest.[14][16] Lerangis lives in New York City with his wife, musician Tina deVaron, and their sons Nick and Joe.[17]